N/null keyword
N
/
null
represents an absence of any value in Nullable types.
Also
N
/
null
can be used as a function's return type name to denote that function does not return anything:
F
func
(
a
) ->
N
print
(
a
) (
Int
->
N
)
fptr
=
n
->
func
(
n
)
fptr
(
1
)